My advice is not to take it at all. Any persons or organizations that use the race card are filthy race-baiters. Do not be courteous or nuanced to these people.
Instead, shove their racist lies up their asses. Do it right away.
Meanwhile, THEY are the racists! See my earlier post on Obama's "Black Liberation Theology". He says in one of his books that he drew lots of inspiration from BLT.